Managing Network:

Understanding remote login to linux servers or machine,
Learn about file on remote server, How to setup, configure
and use FTP server, Troubleshooting of FTP server, How to
setup, configure and use telnet on linux, How to setup,
configure and use SSH server, Troubleshooting of SSH
server, How to setup, configure and use VNC server, How to
setup, use DHCP server,Troubleshooting of DHCP server